The researchers found that people with better cardiovascular health at the beginning of the study were more likely to have higher scores on the tests of thinking and memory skills 30 years later than those with worse cardiovascular health.

Initially found to increase body weight, the study's preliminary results demonstrated that daily consumption of walnuts for one year by a sizable cohort of older adults had no adverse effects on their body weight.

Union Health Minister J P Nadda on Sunday thanked Prime Minister Narendra Modi for raising important health issues including ending preventable maternal and child deaths and dengue, and said his ministry will rise to the challenge.